Air freshener



FIG. 1 is a frontal view of an air freshener according to my design, the back view being identical;

FIG. 2 is a first side view of an air freshener, as shown in FIG. 1, the second side view being identical;

FIG. 3 is a bottom view of an air freshener, as shown in FIG. 1; and,

FIG. 4 is a top view of an air freshener, as shown in FIG. 1.

The broken line showing of environmental structure in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an air freshener, as shown and described. 